[mythtv-users] Sound system is maxing out the CPU (Fedora 11)

[John Nissley]

On 09/14/2009 03:52 PM, John Nissley wrote:
>/  I am playing HD 720P programing on a dual core Intel 2.53 GHZ
/>/  processor.  I noticed that I was running one CPU at 100% when playing
/>/  back the content.  I found a troubleshooting guide and it recommended
/>/  setting the Audio output device to NULL to see if ALSA:default would
/>/  be causing any problems.  When I set the Audio output device to NULL
/>/  the CPU drops from 100% to 20%.  There was no indication in the
/>/  troubleshooting guide if it is normal to have any 80% drop when doing
/>/  this of if that means I have a sound set up problem.
/>/
/>/  Here is some extra information:
/>/  Removed pulse audio and I am still using 100% CPU.
/>/  I only have ALSA, ARTS and JACK audio output devices
/>/  I am currently not using digital out.
/>/  I am running Fedora 11
/>/  Not using XvMC
/>/  I am running a fairly recent trunk version of .22 but do not think
/>/  this has anything to do with it.
/>/
/>/  Do I have a configuration problem or just underpowered processor?
/
Configuration problem.  Video decode is orders of magnitude more
difficult than audio decode.

Did you follow the recommendations on the wiki page?

Mike

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I was pretty sure this was not normal but I really have no clue how to fix it.
Linux audio and I have never been very friendly.  The wiki only stated to
use another audio driver.  I tried installing and uninstalling the pulse audio
driver but it did not appear to make any difference but I was not able
to pick pulse audio as my output device so I am sure I did something wrong.
Do you have any suggestions on further reading?

Thanks

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